Patents by Inventor David PREUNDLER

David PREUNDLER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11471970
    Abstract: A MIG/MAG welding torch body includes a second channel, which is arranged coaxially to the central channel, and a further third channel, which is arranged coaxially to the second channel, wherein a connection is provided between the second channel and the third channel. The first channel has an orifice in the center of the receiving part, the second channel has an orifice on the lateral side of the receiving part, and the third channel has an orifice on the lateral side of the receiving part.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: October 18, 2022
    Assignee: Fronius International GmbH
    Inventors: David Preundler, Klaus Oberndorfer, Anton Preundler
  • Patent number: 11338383
    Abstract: A tungsten inert gas welding torch body, a TIG welding torch handle, and a TIG welding torch has a gas channel terminating in front of the distal end of a plug-in element in an inlet opening arranged on the shell side of the plug-in element, and a central inlet mouth at the distal end of the plug-in element terminating in front of the distal end of the plug-in element in a return opening on the shell side at the plug-in element. The TIG welding torch handle has a second channel arranged coaxially to the central channel, and a third channel arranged coaxially to the second channel. A connection is between the second channel and the third channel. The first channel has a mouth in the center of the receiving part, and each of the second and third channels has a mouth on the shell side of the receiving part.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: May 24, 2022
    Assignee: Fronius International GmbH
    Inventors: David Preundler, Klaus Oberndorfer, Anton Preundler, Alexander Zeitlinger
  • Publication number: 20210339331
    Abstract: A MIG/MAG welding torch body includes a second channel, which is arranged coaxially to the central channel, and a further third channel, which is arranged coaxially to the second channel, wherein a connection is provided between the second channel and the third channel. The first channel has an orifice in the center of the receiving part, the second channel has an orifice on the lateral side of the receiving part, and the third channel has an orifice on the lateral side of the receiving part.
    Type: Application
    Filed: September 5, 2019
    Publication date: November 4, 2021
    Applicant: Fronius International GmbH
    Inventors: David PREUNDLER, Klaus OBERNDORFER, Anton PREUNDLER
  • Publication number: 20200086414
    Abstract: A tungsten inert gas welding torch body, a TIG welding torch handle, and a TIG welding torch has a gas channel terminating in front of the distal end of a plug-in element in an inlet opening arranged on the shell side of the plug-in element, and a central inlet mouth at the distal end of the plug-in element terminating in front of the distal end of the plug-in element in a return opening on the shell side at the plug-in element. The TIG welding torch handle has a second channel arranged coaxially to the central channel, and a third channel arranged coaxially to the second channel. A connection is between the second channel and the third channel. The first channel has a mouth in the center of the receiving part, and each of the second and third channels has a mouth on the shell side of the receiving part.
    Type: Application
    Filed: April 13, 2018
    Publication date: March 19, 2020
    Applicant: Fronius International GmbH
    Inventors: David PREUNDLER, Klaus OBERNDORFER, Anton PREUNDLER, Alexander ZEITLINGER
  • Patent number: 9731374
    Abstract: A cooled welding torch (1) having a cooling circuit, which cooling circuit extends via a nozzle fitting receiver (3) into a gas nozzle (9), and the gas nozzle (9) is attachable to the welding torch (1) by a defined turn, wherein the cooling circuit is routed through a redirecting element (5), which redirecting element (5) is positioned above the nozzle fitting receiver (3) and may be turned together with the gas nozzle (9), wherein a path of the cooling circuit is switchable by the position of the gas nozzle (9).
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: August 15, 2017
    Assignee: Fronius International GmbH
    Inventors: Klaus Oberndorfer, David Preundler, Stefan Puehringer, Anton Preundler
  • Publication number: 20140251973
    Abstract: A cooled welding torch (1) having a cooling circuit, which cooling circuit extends via a nozzle fitting receiver (3) into a gas nozzle (9), and the gas nozzle (9) is attachable to the welding torch (1) by a defined turn, wherein the cooling circuit is routed through a redirecting element (5), which redirecting element (5) is positioned above the nozzle fitting receiver (3) and may be turned together with the gas nozzle (9), wherein a path of the cooling circuit is switchable by the position of the gas nozzle (9).
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Applicant: FRONIUS INTERNATIONAL GMBH
    Inventors: Klaus OBERNDORFER, David PREUNDLER, Stefan PUEHRINGER, Anton PREUNDLER